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Clinical Trial Summary

To compare the physiological and psychological effects of psilocin taken orally by pill or sublingually by dissolving a tablet under the tongue to those of psilocybin taken by pill in healthy adults.


Clinical Trial Description

The primary goal of this study is to compare the physiological and psychological effects of psilocin taken orally by pill or sublingually dissolved under the tongue to those of psilocybin taken by pill. Twenty participants, ages 25 to 50, with one previous experience with psychedelics, and who meet all other inclusion and exclusion criteria at screening will be enrolled. After baseline assessments, participants will engage in preparatory visits with trained facilitators, followed by drug administration, supervised by the facilitators and a clinician who will conduct safety monitoring throughout. Participants will then complete assessment and integration sessions with the facilitators in order to help process the experience. The same preparation, procedures, integration, and supervision will be repeated up to three more times with each participant. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05317689
Study type Interventional
Source University of California, San Francisco
Contact Cesar Molina
Phone 415-221-4810
Email psilocybinstudies@ucsf.edu
Status Recruiting
Phase Phase 1
Start date May 26, 2022
Completion date March 2025

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